java - 不确定错误，当我按下按钮 E/AndroidRuntime: FATAL EXCEPTION: main 时导致我的应用程序崩溃的问题
问题描述
我只是按照 YouTube 上的教程开始接触 Android Studio 并对其进行了一些修改，但我不确定是什么问题以及如何解决它，提前致谢。
当我测试应用程序时，错误显示在 logcat 中
Process: com.example.eatxpiryinventory, PID: 12245
java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionmyViewHolder{59b9b99 position=3 id=-1, oldPos=0, pLpos:0 scrap [attachedScrap] tmpDetached no parent} androidx.recyclerview.widget.RecyclerView{3acbd7f VFED..... ......ID 0,0-1080,1868 #7f0800ea app:id/idrv}, adapter:com.example.eatxpiryinventory.MainAdapter@183914c, layout:androidx.recyclerview.widget.LinearLayoutManager@8123595, context:com.example.eatxpiryinventory.MainActivity@1515f29
at androidx.recyclerview.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:6156)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6339)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6300)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6296)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2330)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1631)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1591)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:668)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:4255)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:4010)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4578)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1103)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at androidx.appcompat.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:536)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:779)
at android.view.View.layout(View.java:21912)
at android.view.ViewGroup.layout(ViewGroup.java:6260)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3080)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2590)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1721)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7598)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:966)
at android.view.Choreographer.doCallbacks(Choreographer.java:790)
at android.view.Choreographer.doFrame(Choreographer.java:725)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:951)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
2021-10-30 17:03:29.986 12245-12245/com.example.eatxpiryinventory E/AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
2021-10-30 17:03:29.992 12245-12245/com.example.eatxpiryinventory I/Process: Sending signal. PID: 12245 SIG: 9
一段代码
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.database.FirebaseDatabase;
import java.util.HashMap;
import java.util.Map;
public class AddActivity2 extends AppCompatActivity {
EditText FoodName,ExpiryDate, Remarks;
Button btnAdd, btnBack;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add2);
FoodName = (EditText)findViewById(R.id.idTxtFoodName);
ExpiryDate =(EditText)findViewById(R.id.idTxtExpDate);
Remarks = (EditText)findViewById(R.id.idTxtRemarks);
btnAdd = (Button)findViewById(R.id.idBtnAdd);
btnBack = (Button)findViewById(R.id.idBtnBack);
btnAdd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
insertData();
clearAll();
finish();
}
});
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
private void insertData()
{
Map<String,Object> map = new HashMap<>();
map.put("FoodName",FoodName.getText().toString());
map.put("ExpiryDate",ExpiryDate.getText().toString());
map.put("Remarks",Remarks.getText().toString());
FirebaseDatabase.getInstance().getReference().child("Inventory").push()
.setValue(map)
.addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void unused) {
Toast.makeText(AddActivity2.this, "Data Insert Successfully", Toast.LENGTH_SHORT).show();
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(Exception e) {
Toast.makeText(AddActivity2.this, "Error While Insert", Toast.LENGTH_SHORT).show();
}
});
}
private void clearAll()
{
FoodName.setText("");
ExpiryDate.setText("");
Remarks.setText("");
}
}
应用程序可以解决错误，但是当按下一个按钮时它会崩溃。这是我第一次在 android studio 中使用我自学的 java。因此，我非常不确定该错误，因为它以正常方式工作。